At first Victor resisted the approaches of his ill-defined aide, but came to recognize that Galen was attempting to be the exact opposite of the spine-less "Yes-Man" he had come to expect. When Clan Jade Falcon virtually overran their unit on Trellwan during the opening shots of the Clan Invasion, Galen's role was put to the ultimate test when he was forced to knock the prince out to ensure Victor could be safely evacuated off-world.

However in April 3056 during a visit to Solaris VII, he was believed killed in a bomb assassination ordered by Ryan Steiner. In actuality, he had been spared when MIIO agents had linked his fiancee to the bomb assassination of Melissa Steiner-Davion, and in turn discovered the warning passed on to her by a mole she had placed in Ryan Steiner's staff.

Several months later, having underground plastic surgery and wearing a thick beard to help differentiate himself from his previously clean-shaved look, Galen Cox emerged as Jerrard Cranston, a personal aide to Prince Victor.

With his cover identity background intended to be roughly similar to his true one to avoid question while explaining his background and military experience, Cranston supposedly hailed from Callison in the Isle of Skye, being first posted to the 11th Lyran Guards before being transferred to the 1st Lyran GuardsRCT, seeing action against the Clans on Maestu in 3051. [2] Reportedly retiring from military service shortly after the Battle of Tukayyid, Cranston official records abruptly ceased until he mysteriously appeared at Victor's side.

While Cranston publicly served as an minor aide to the Archon-Prince to cloak his responsibilities, in actual fact Galen served as primary Intelligence adviser for Victor. Upon Victor's return from Clan-space and following Katherine's coup against Regent Yvonne Steiner-Davion in 3061, Galen accompanied him into exile, shattering his humble facade when he was formally appointed Director of Intelligence for the Star League Defense Force later that same year.

Even while serving in this position, Galen continued to funnel info and maintain connections in both the Lyran Alliance and Davion Federated Commonwealth to assist Victor in the approaching conflict. After the Federated Commonwealth Civil War official started, Galen once again returned to the position of formal personal aide for his friend. At the conclusion of the Civil War with Katherine deposed, Galen abandoned the Cranston persona. [1]

It was confirmed by GeneralBelle Lee that during the campaign against Terra itself, Cox would be leading the ground assault near Texas in North America, while his former Group II compatriot Connor Sortek led the campaign against Unity City on the same continent.[4]